尝试将更新的 Rails 应用程序部署到 Heroku 时出错 - /bin/bundle：无法执行二进制文件：执行格式错误

Question

I have a previously deployed Ruby on Rails API that I wanted to add some additional seed data to.

I am getting the following error when I deploy from either the Heroku CLI or from the web interface:

-----> Ruby app detected
-----> Installing bundler 2.0.2
-----> Removing BUNDLED WITH version in the Gemfile.lock
-----> Compiling Ruby/Rails
-----> Using Ruby version: ruby-2.6.5
-----> Installing dependencies using bundler 2.0.2
       Running: bundle install --without development:test --path vendor/bundle --binstubs vendor/bundle/bin -j4 --deployment
       bash: /tmp/build_9062c7d5995d7f7c573d9509eb8f19d5/bin/bundle: cannot execute binary file: Exec format error
       Bundler Output: bash: /tmp/build_9062c7d5995d7f7c573d9509eb8f19d5/bin/bundle: cannot execute binary file: Exec format error
 !
 !     Failed to install gems via Bundler.
 !
 !     Push rejected, failed to compile Ruby app.
 !     Push failed

I am not sure what the issue is. I have tried:

• Deploying to a brand new Heroku application
• Adding a Procfile
• Adding a Ruby build pack
• Resolving some outstanding security warnings from Github by running Bundle update locally and getting the new gemfile into my repo, prior to this there were no new Gem changes

None of these has changed the error I am getting.

If I clone the repo from github into a new folder on my Macbook I am able to get it up and running locally.

I have the following on my Macbook:

• Ruby Version 2.6.5p114
• Rails Version 6.0.3.2

Google does not seem to be turning up much, aside from some references to CPU architecture which I assume I have no control of in the Heroku environment.

My feeling is that it is related to bash being unable to execute bin/bundle but I've no idea why or how to resolve.

I vaguely recall having issues previously on this app, in that I was not able to run heroku run rake commands, possibly getting a similar error message, but to resolve I think I was able to simply run heroku run bin/rake

I believe the original rails new command was run on Windows 10 WSL environment in case that is relevant.

EDIT: I'm able to recreate a similar issue with rake , but the fix for rake does not work for bundle and I'm not even sure if it would help with the deployment issue.

➜  appbackend git:(master) heroku run rake
Running rake on ⬢ heroku-name-40049... up, run.8396 (Hobby)
bash: /app/bin/bundle: cannot execute binary file: Exec format error
➜  appbackend git:(master) heroku run bin/rake
Running bin/rake on ⬢ heroku-name-40049... up, run.5201 (Hobby)
Abort testing: Your Rails environment is running in production mode!
➜  appbackend git:(master) 

➜  appbackend git:(master) heroku run bundle install
Running bundle install on ⬢ heroku-name-40049... up, run.7746 (Hobby)
bash: /app/bin/bundle: cannot execute binary file: Exec format error
➜  appbackend git:(master) heroku run bin/bundle install
Running bin/bundle install on ⬢ heroku-name-40049... up, run.4632 (Hobby)
bash: bin/bundle: cannot execute binary file: Exec format error

Answer 1

Turns out it was exactly as the error message stated Exec format error .

The bundle file in the bin directory was not the right format. Not sure how I managed to deploy in the first place (the history of this file has only 2 version in the repo, the first commit, and now the fix).

I was able to resolve by overwriting the bundle file from a different working rails install. Appreciated the help provided.